Filter with shield features

• US 10,369,508 B2
• Filed: 02/23/2017
• Issued: 08/06/2019
• Est. Priority Date: 02/23/2017
• Status: Active Grant

• Current Assignee: Baldwin Filters Incorporated (Parker-Hannifin Corporation)
• Original Assignee: Baldwin Filters Incorporated (Parker-Hannifin Corporation)
• Inventors: Dexter, Levi William, Varghese, Benny Mathew
• Primary Examiner(s): Orlando, Amber R
• Assistant Examiner(s): Pham, Minh Chau T
• Application Number:
  US15/440,161
• Publication Number:
  US 20180236391A1
• Time in Patent Office: 894 Days
• Field of Search: 55484, 55521, 55491, 55498, 55502, 55357, 493405
• CPC Class Codes: B01D 2271/025 Making of sealings
• CPC Class Codes: B01D 2271/027 Radial sealings
• CPC Class Codes: B01D 46/0005 Mounting of filtering elements within casings, housings or frames B01D46/2422 takes precedence
• CPC Class Codes: B01D 46/121 V-type arrangements
• CPC Class Codes: B01D 46/4227 Manipulating filters or filter elements, e.g. handles or extracting tools
• CPC Class Codes: B01D 46/521 using folded, pleated material

Abstract

Filters and filter assemblies including one or more shield elements to protect the filter media of the filters during installation of the filters into a filter housing of the filter assembly are provided. A filter includes first and second media packs, a housing seal system, a handle and a shield element. Filter media packs extend from a first end to a second end in a diverging manner. The first end has a length dimension and a width dimension that extend transversely. A shield element projects over the first and second media packs at the first end a span in the width direction of at least 40% of the width dimension defined by the first and second media packs and projecting a span in the length direction of at least 5% of the length dimension defined by the first end.

Claims

1. A filter comprising:

first and second filter media packs extending from a first end to a second end, the first end having a length dimension and a width dimension that extend transversely, the width dimension being defined by the first and second media packs, each of the first and second filter media packs having a first and second side, the length dimension and the first end extending between the first and second sides of the first and second filter media packs, the first and second filter media packs converging at the first end and diverging when moving away from the first end toward the second end to define an air flow cavity therebetween;

a housing seal system at the second end;

a handle at the first end;

a bridge element at the first end spanning across the first and second media packs along the width dimension less than the width dimension of the first end;

first and second shield elements extending outward from the first shield element along the width dimension in opposite directions such that the first shield element extends over the first filter media pack to a farther extent than the bridge element and the second shield element extends over the second media pack to a farther extent than the bridge element, the first and second shield elements extending a span along the length dimension of at least 5% of the length dimension defined by the first end, the first and second shield elements extending along the length dimension less than the bridge element extends along the length dimension.

2. The filter of claim 1, wherein the first and second shield elements cover the first and second filter media packs underneath the handle and in a central region along the length dimension of the first end and in a central region of the bridge element along the length dimension, the handle being spaced from the first and second shield elements with the first and second shield elements being positioned between the handle and the first and second media packs forming a recess between the handle and the first and second shield elements.

3. The filter of claim 1, wherein the first and second shield elements extend over the first and second filter media packs proximate the first side of the first and second media pack, wherein each of the first and second shield elements extend over the first and second media packs at the first end along the length dimension at least 0.5 inches.

4. The filter element of claim 3, wherein each of the first and second shield elements extend over the first and second media packs at the first end along the length dimension at least 0.75 inches.

5. The filter of claim 1, wherein the first and second shield elements and bridge element combine to project over the first and second media packs along the width dimension at least 75% of the width dimension of the first end.

6. The filter of claim 1, wherein the bridge element, and first and second shield elements combine to extend over the media pack at the first end at least 90% of the width dimension along the width dimension.

7. The filter of claim 1, wherein the handle, bridge element and first and second shield elements are at least part of a preformed component secured to the first and second media packs.

8. The filter of claim 1, wherein the first and second filter media packs are pleated having pleat folds;

further comprising;

first and second end caps on the first and second sides of the first and second filter media packs, wherein the pleat folds run laterally between the first and second sides;

the bridge element extending between the first and second end caps along the length dimension of the first end.

9. The filter of claim 8, wherein the first and second shield elements are located proximate a first end of the bridge element and each of the first and second shield elements extend partially into the first end cap defining an unexposed portion and partially out of the first end cap defining an exposed portion that is exposed exteriorly of the first end cap.

10. The filter of claim 9, wherein the exposed portion extends at least 0.5 inches in the length direction and the unexposed portion extends less than 0.5 inches along the length dimension of the first end.

11. A filter comprising:

first and second filter media packs extending from a first end to a second end, the first end having a length dimension and a width dimension that extend transversely, the first and second filter media packs converging at the first end and diverging when moving away from the first end toward the second end to define an air flow cavity therebetween, the first and second filter media packs being pleated having pleat folds;

a housing seal system at the second end;

first and second end caps on opposite first and second sides of the first and second filter media packs, wherein the pleat folds run laterally between the first and second opposite sides;

a handle frame at the first end including a bridge element spanning over the first and second filter media packs along the width dimension less than the width dimension of the first end and between the first and second end caps;

the handle frame includes a handle spaced away from the bridge element forming a gap between the bridge element and the handle, and

the handle frame includes a first shield element projecting laterally from the bridge element along the width dimensions farther than the bridge element, the first shield element extending along the length dimension less than the bridge element.

12. The filter of claim 11, wherein the first shield element is located proximate a first end of the bridge element and extends partially into the first end cap and partially out of the first end cap defining an exposed portion that is exposed exteriorly of the first end cap.

13. The filter of claim 12, wherein the exposed portion of the first shield element covers the first and second filter media packs along the width dimension at least 75% of the width dimension and along the width dimension at least 5% of the length.

14. The filter of claim 13, further including a second shield element extending laterally from the bridge element along the width dimension farther than the bridge element and located proximate a second end of the bridge element and which extends partially into the second end cap and partially out of the second end cap defining an exposed portion that is exposed exteriorly of the second end cap.

15. The filter of claim 14, further including a third shield element extending laterally from the bridge element along the width dimension farther than the bridge element, the third shield element located centrally along the length dimension, the third shield element being spaced from both the first and second shield elements along the length dimension.

16. A housing and filter assembly, comprising:

an air cleaner housing assembly, including a housing base defining a filter cavity and a housing lid removably covering the housing base to define a filter cavity, the air cleaner assembly including a clean air outlet and an unfiltered air inlet, the housing lid comprising a tubular element projecting toward the housing base and into the cavity;

a filter disposed in the filter cavity and arranged to filter air between the clean air outlet and the unfiltered air inlet, the filter including;

a filter media arrangement having a first end and a second end;

a housing seal system at the second end;

a frame member at the first end and comprising a first shield element, the first shield element defining a perimeter larger than the tubular element to prevent the tubular element from contacting the filter media arrangement.

17. The assembly of claim 16, wherein the frame member includes an outward extending handle member spaced away from the first shield element, the handle member received within the tubular member when the housing lid is attached to the housing base.

18. A filter element comprising:

first and second filter media panels, each filter media panel defining a first, a second, a third and a fourth side, for each filter media panel, the first and second sides are offset from one another and extend between the third and fourth sides which are offset from one another;

a support frame maintaining the first and second filter media panels in a generally spaced orientation forming a cavity therebetween;

a base frame defining a first opening in fluid communication with the cavity;

a seal gasket attached to the base frame, the base frame including a plurality of openings through which the seal gasket extends, the seal gasket closing the openings; and

first and second end cap structures, the first end cap structure operably sealing the third side of the first and second filter media panels and the second end cap structure operably sealing the fourth side of the first and second filter media panels, the base frame having a first portion captured in the first end cap structure and a second portion captured in the second end cap structure.

19. The filter element of claim 18, wherein the seal gasket is molded directly to the base frame and through the openings.